On Sat, 2009-05-02 at 18:12 -0400, Rince wrote: > Well...that's different. > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 > IP: [<ffffffffa02c8ff2>] _nfs4_do_setlk+0xe3/0x289 [nfs] > PGD 10e4f7067 PUD 109221067 PMD 0 > Oops: 0000 [#1] SMP > last sysfs file: /sys/devices/virtual/block/md0/md/metadata_version > CPU 0 > Modules linked in: autofs4 coretemp hwmon nfs lockd nfs_acl > auth_rpcgss sunrpc cachefiles fscache ipv6 cpufreq_ondemand > acpi_cpufreq freq_table kvm_intel kvm snd_hda_codec_idt snd_hda_intel > snd_hda_codec snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi_event > snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm cpia_usb > e1000e snd_timer ppdev cpia snd ums_cypress parport_pc videodev > firewire_ohci i82975x_edac usb_storage parport firewire_core i2c_i801 > edac_core v4l1_compat soundcore snd_page_alloc iTCO_wdt > v4l2_compat_ioctl32 pcspkr i2c_core crc_itu_t iTCO_vendor_support > raid1 [last unloaded: scsi_wait_scan] > Pid: 29418, comm: 10.1.1.2-manage Not tainted 2.6.30-rc4 #1 > RIP: 0010:[<ffffffffa02c8ff2>] [<ffffffffa02c8ff2>] > _nfs4_do_setlk+0xe3/0x289 [nfs] > RSP: 0018:ffff880102361d30 EFLAGS: 00010246 > RAX: ffff8800ce865f00 RBX: ffff88010b4b74d8 RCX: 0000000000000000 > RDX: 0000000000000000 RSI: 00000000000000d0 RDI: 0000000000000138 > RBP: ffff880102361de0 R08: ffff880126557000 R09: ffff8800b38c3900 > R10: ffffffffa02cbd1c R11: ffff880126553c00 R12: 00000000fffffff4 > R13: 0000000000000000 R14: ffff88012d42f5c0 R15: ffff88012d42f5c0 > FS: 0000000000000000(0000) GS:ffff880028023000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 0000000000000010 CR3: 0000000016eda000 CR4: 00000000000026e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process 10.1.1.2-manage (pid: 29418, threadinfo ffff880102360000, task > ffff8800015b5c00) > Stack: > ffff880102361d40 0000000600000001 ffff8800ce865f00 ffffffffa02cbc5c > 0000000000000000 ffff880126555c00 ffff880102361d90 ffffffffa02db960 > 0000000000000000 ffff880128093000 0000000000000001 ffffffffa02b88aa > Call Trace: > [<ffffffffa02cbc5c>] ? nfs4_open_recover_helper+0x82/0x97 [nfs] > [<ffffffffa02b88aa>] ? __put_nfs_open_context+0x31/0x98 [nfs] > [<ffffffffa02c9646>] nfs4_lock_reclaim+0x60/0x8d [nfs] > [<ffffffffa02d57a3>] nfs4_do_reclaim+0x13d/0x322 [nfs] > [<ffffffffa02d5b21>] nfs4_run_state_manager+0x199/0x27f [nfs] > [<ffffffffa02d5988>] ? nfs4_run_state_manager+0x0/0x27f [nfs] > [<ffffffffa02d5988>] ? nfs4_run_state_manager+0x0/0x27f [nfs] > [<ffffffff8105e7bf>] kthread+0x5b/0x88 > [<ffffffff81011dba>] child_rip+0xa/0x20 > [<ffffffff8101177d>] ? restore_args+0x0/0x30 > [<ffffffff8105e764>] ? kthread+0x0/0x88 > [<ffffffff81011db0>] ? child_rip+0x0/0x20 > Code: 10 e1 49 8b 47 58 4d 8b af 90 00 00 00 be d0 00 00 00 bf 38 01 > 00 00 41 bc f4 ff ff ff 48 8b 80 a0 00 00 00 48 89 85 60 ff ff ff <49> > 8b 45 10 4c 8b 70 38 49 8b 86 00 01 00 00 48 8b 80 a8 02 00 > RIP [<ffffffffa02c8ff2>] _nfs4_do_setlk+0xe3/0x289 [nfs] > RSP <ffff880102361d30> > CR2: 0000000000000010 > ---[ end trace 205a6f9494aa30de ]--- > > It's unclear to me whether I should blame this on the patches applied, > or that this is just something never triggered unless the > aforementioned bug is fixed... > > - Rich It is completely unrelated. The above appears to be due to a lock recovery error after a server reboot. It has nothing to do with the mmap writeback code. Trond -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
